Grate-bar.



No. 020,000. PATENTED MAY 0, 1900. R. 0. MONTEAGLE. GRATB BAR.

LPPLIUATION FILED MAY 3, 1904.

UNITED STATES PATEN T OFFICE.

Specification of Letters Patent.

Patented May 8, 1906.

Application filed ay 3, 1904. Berial No. 206,197-

To all whom it may concern:

Be it known that I, ROBERT CHARLES MONTEAGLE, a citizen of the United States, and a resident of New York, in the county and State of New York, have invented certain new and useful Improvements in Grate- Bars, of which the following is a stpecification.

My invention relates to gratears.

It has for its object to provide a grate-bar having the upper edges of the bars corrugated, the projections thereof being rounded and the projections of each bar staggered with relation to the rojections of the adjacent bars, whereby w on coal is placed thereon there will be a thorough circulation of air 111p between said bars and over them, between t e projections, causing a thorough mixin of the air with the gases and preventing the ormation of clinkers.

It has for a further object to provide a grate-bar of the character set forth possesslng advantages in point of perfect results, ineX ensiveness, simplicity, and general utility.

n the drawings, Figure l is a front view; Fig. 2, a plan view; Fig. 3, a transverse sectional view.

Corres onding parts in all the figures are denoted y the same reference characters.

Referring to the drawings, 1 desi ates the grate-bar, which may be cast or ormed in one piece and comprising a plurality of spaced bars 2, their upper edges provided with corrugations 3, the projections of each bar being1 rounded and staggered with relation to t e projections of the adjacent bars and the ends of the grate-bar 1 provided with journals 4 and 5, one of which is squared to receive a crank to afford means for shaking the grate-bar.

The lower portions of the bars 2 are preferably tapered, so as to provide adequate space both for air to pass and ashes to fall with the least possible interference. This feature is shown in Fig. 3.

It will be understood that when the coal is placed on my grate-bar it will rest on top of the rounded projections and leave the spaces between the bars and between the projections 0 en for the free circulation of air and that w on the coal is burned to ashes the ashes will fall through the grate-bars, as the rounded projections will not offer a support for them.

I do not desire to be understood as limiting myself to the details of construction and arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made in the features of construction and arrangement, in the adaption of the device to various conditions of use, without departing from the spirit and scope of my invention and improvements. I therefore reserve the right to all such variation and modification as properly fall within the scope of m r invention and the terms of the following o aim.

Having thus described my invention, I claim and desire to secure by Letters Patent As an improvement in grate-bars, a plurality of spaced bars each having its top edge provided with a longitudinal series of s aced projections which are convex or roun ed in the direction of the longitudinal plane of the bar, the top edge of each bar havin said convex or rounded projections being a so convex or rounded transversely with respect to the direction of the longitudinal plane of the bar, whereby each projection forms a mount having rounded surfaces extending from its apex at all sides, the bars being relatively arranged so that the rounded mounts or roj ections of one bar are staggered with relation to the corresponding mounts or projections of the adjoining bar, substantial y as and for the purpose set forth. v

In testimony whereof I have si ned my name in the presence of the subscri ing witnesses.

ROBERT GHARLES MONTEAGLE.

Witnesses D. 0. Fox, 

